Wifi Calling- incoming calls not received

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tim0001

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#293627 3-Feb-2022 12:18

Our neigbour has an interesting Wifi calling problem thats been going on for a few weeks. Incoming txts and calls are not being received (at all). (Outgoing calls/txts still work)

The interesting part is that if the phone is taken to mobile coverage the wifi calling problem is temporarily fixed (ie incoming txts/calls work again when in wifi-only coverage). Until 5 days later when the problem comes back.

VF hasn't found a solution yet. Curious if anyone has some ideas on why this is occurring, or better still, has a remedy.

The phone is a Samsung Galaxy S20 SM-G980F/DS.

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#2861227 3-Feb-2022 12:37

Do they have good cell reception at home? If so maybe just turn off wifi calling. I used it in the UK with Vodafone over there and always found it problematic, especially handoff between WiFI <> Cell when on a call.

RunningMan

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#2861229 3-Feb-2022 12:47

Is it always the same location? What router / wifi are they using?

tim0001

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#2861232 3-Feb-2022 12:51

Unfortunately the nearest mobile coverage is a 1.5hr return drive. At least there will be no issues with the WiFI <> Cell handoff to worry about 😀

tim0001

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#2861235 3-Feb-2022 12:59

@RunningMan

Starlink router (close to phone). They had the same issue on our Starlink router too.

They've got another model phone that doesn't have the issue.

RunningMan

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#2861238 3-Feb-2022 13:03

I wonder if that's blocking the inbound connection somehow. I don't know how the Vodafone WiFi calling opens the connection back to base, but it sounds like something shutting down a connection that should be kept alive. Are there any SIP or VPN ALGs in the Starlink config that can be disabled to try?

tim0001

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#2861244 3-Feb-2022 13:17

I'll try that when I get a new router. (Its not possible to configure the SL router at all. I recently bought a Fritz!box off TM, so I can try that when it arrives).

We have a total of 5 mobiles using wifi calling , and only one has the problem. (3 are VF, and 2 are 2D mobiles)

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tim0001

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#2868257 14-Feb-2022 15:46

Replacing the Starlink router with a Fritz!box doesn't appear to be a practical option. (There is an issue with the WAN link dropping back to FE 100Mbps. Fortunately the Fritz!box makes a good AP hanging off the Starlink router).

dt

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#2868261 14-Feb-2022 16:07

running android 12? a few reported issues in the vodafone wifi calling thread [me included] that on android 12 its still preferring a cellular connection over wifi calling. Current work around is turning on aeroplane mode then turning on wifi so it re enables wifi calling.

Mine is having the same issue as yours, inbound not working, outbound working fine

give it a go?

nztim

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#2868282 14-Feb-2022 16:54

Do they have more than one phone trying to use wifi calling?

Please try with just one phone with wifi calling are report back

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tim0001

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#2869869 16-Feb-2022 19:43

Thanks

@dt I'll try flight mode when I go around there next. We normally have our phones in flight mode to save battery (there is no cell signal here), but I suspect our neighbours don't bother. Something to try anyway.

@nztim They've got two phones. Only the S20 has the problem . Yeah the problem exists when the "good phone" is elsewhere.

Ping

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#2875883 27-Feb-2022 21:47

I'm getting this behaviour also on iPhone 13.

Sometimes the phone will pick up one bar of signal and I feel like its preferring this as I'll never get the incoming call just a 'whoCalled TXT'

Pat

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#2875889 27-Feb-2022 22:01

Ping:

I'm getting this behaviour also on iPhone 13.

Sometimes the phone will pick up one bar of signal and I feel like its preferring this as I'll never get the incoming call just a 'whoCalled TXT'

As above. Please try with airplane mode enabled. VoWiFi is not prioritized over anything else so you need to give it no change of falling back to VoLTE or 3G based calling.

Ramblings from a mysterious lady who's into tech. Warning I may often create zingers.

Ping

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#2875890 27-Feb-2022 22:03

Yeah I guess... Such a janky work around though :/

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#2875899 27-Feb-2022 22:23

We all are wondering the same thing...

@konfusd

Is it normal behaviour to see VoWiFi not prioritized over VoLTE and 3G/GSM calling?

Seems like it's causing a lot of hassle with a few users. Is not the only thread about this.

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alasta

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#2876080 28-Feb-2022 09:14

Does this imply that we should only have wifi calling enabled if our home has no cellular coverage?

I have it turned on and my phone seems to alternate between 'VF Wifi Calling' and 'VF Pride' - I think the latter is cellular? If my phone is periodically flipping between these two, does that mean that I am at risk of missing calls?

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